docs: def get_table_acl(self, table_name, timeout=None):
          '''
          Returns details about any stored access policies specified on the
          table that may be used with Shared Access Signatures.
  
          :param str table_name:
              The name of an existing table.
          :param int timeout:
              The server timeout, expressed in seconds.
          :return: A dictionary of access policies associated with the table.
          :rtype: dict(str, :class:`~azure.storage.common.models.AccessPolicy`)
          '''
          _validate_not_none('table_name', table_name)
          request = HTTPRequest()
          request.method = 'GET'
          request.host_locations = self._get_host_locations(secondary=True)
          request.path = '/' + _to_str(table_name)
          request.query = {
              'comp': 'acl',
              'timeout': _int_to_str(timeout),
          }
  
          return self._perform_request(request, _convert_xml_to_signed_identifiers)